EP2242997B1 - Dispositif de dosage pour mélanges de fluides - Google Patents

Dispositif de dosage pour mélanges de fluides Download PDF

Info

Publication number
EP2242997B1
EP2242997B1 EP09711788.1A EP09711788A EP2242997B1 EP 2242997 B1 EP2242997 B1 EP 2242997B1 EP 09711788 A EP09711788 A EP 09711788A EP 2242997 B1 EP2242997 B1 EP 2242997B1
Authority
EP
European Patent Office
Prior art keywords
channel
metering valve
arcuate path
outflow channel
guided
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09711788.1A
Other languages
German (de)
English (en)
Other versions
EP2242997A1 (fr
Inventor
René BACHMANN
Kersten Grosse
Johann Gunnesch
Thomas Morchel
Daniel Rammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buerkert Werke GmbH and Co KG
Original Assignee
Buerkert Werke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buerkert Werke GmbH and Co KG filed Critical Buerkert Werke GmbH and Co KG
Publication of EP2242997A1 publication Critical patent/EP2242997A1/fr
Application granted granted Critical
Publication of EP2242997B1 publication Critical patent/EP2242997B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/001—Means for regulating or setting the meter for a predetermined quantity
    • G01F15/003—Means for regulating or setting the meter for a predetermined quantity using electromagnetic, electric or electronic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves

Definitions

  • the invention relates to a device for metering fluid mixtures, preferably from liquids or a liquid and a gas such as e.g. Carbon dioxide.
  • Dosing devices are needed, for example, in the beverage or food industry.
  • Both a desired volume of liquid should be exactly adjustable and a defined filling speed.
  • the GB 2 055 348 A discloses an automatic beer pouring system using a flow meter with an impeller.
  • the impeller is rotatably connected to a disc which actuates a microswitch, which in turn switches the electromagnet of a control valve.
  • the inflow and outflow of the flowmeter are arranged at right angles and the fluid is directed along an arcuate path at the periphery of the impeller.
  • the fluid to be metered is a mixture of liquid and gas
  • the gas affects the running properties of the sensor and thus falsifies the measured values, which means that a desired amount of fluid can not be reliably metered.
  • the device according to the invention should be made possible to realize a batch filling within a predetermined time. But it is also a continuous flow control possible.
  • the metering device indicated in the appended claims enables a precise measurement of the flow even in the presence of gas.
  • the gas which is not dissolved in the medium collects above the liquid and remains in the sensor area only for a short time.
  • a taper of the inflow passage additionally causes the fluid to be metered to undergo acceleration. This is an advantage when measuring in the lower flow range.
  • Fig. 2 . 3 and 4 shows the there drawn by means of arrow weight 16 the preferred spatial arrangement of the device or a part of this.
  • a fluid to be metered is passed through the fluidic inlet 8 via the flow sensor 2 to the proportional valve 3 in a known manner.
  • the proportional valve is controlled by means of the control electronics 1 via the drive signal 6.
  • the control electronics 1 is connected to the power supply 5 and communicates by means of interface 4 with the user. On the basis of the sensor signal 7 of the flow sensor 2, the proportional valve 3 receives its drive signal, and the desired amount of medium reaches the fluidic output 9.
  • FIG. 2 is a sectional view of a fluid channel guide according to the invention and a sensor shown.
  • Fig. 3 a sectional view of a fluid channel guide and a sensor according to the prior art.
  • the fluid to be metered flows from the inlet 8 via the impeller 2 to the outlet channel 10.
  • the fluid channel extends at the in Fig. 2 not shown as in known devices according to Fig. 3 linear also in the area of the sensor, but it is at least in part of the sensor area according to its geometry part-circular.
  • the fluid mixture is guided on an arcuate path.
  • the defined by the center axes of inlet channel 8 and outlet channel 10 angle ⁇ is significantly greater than 180 ° and here is about 315 °.
  • the Fluidmit Spotifyweg in the device according to the invention is significantly longer than in a conventional metering device. Disturbing gas in the sensor area is thus constantly transported away from this area in the direction of the proportional valve 3.
  • the illustrated channel geometry with the shortest possible horizontal channel section in the area of the flow sensor prevents gas from accumulating in this area. It is essential in this context, the horizontal axis of the impeller and the bottom-up leading flow path.
  • Fig. 4 shows a sectional view of a complete dosing system according to the invention 13. Therein, a control electronics 1 is integrated, which allows a compact design.
  • a taper of the fluidic input channel 8 additionally has a favorable effect on the flow of the medium to be metered.
  • the diameter of the fluid channel decreases at 11 from d1 in the region of the input 8 at 12 to d2 near the sensor.
  • the proportional valve 3 is arranged so that its central axis represents the extension of the central axis of the outlet channel 10 in the longitudinal direction between the sensor and valve.
  • control device in the form of the control electronics 1 is combined with the flow sensor 2 and the metering valve formed by the proportional valve in a structural unit.
  • the metering valve has a sealing seat formed at the end of the outlet channel and a closing body whose end face is perpendicular to the axis of the outlet channel.
  • the fluid mixture is guided over a horizontal inlet channel to the arcuate path and guided over a relative to the inlet channel angled outlet channel of the arcuate path in the direction of the metering valve.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Claims (4)

  1. Dispositif de dosage de liquides qui contiennent un gaz tel que du dioxyde de carbone, comportant un capteur de débit (2) qui présente une roue hélice à axe horizontal et à la périphérie duquel le mélange de fluide est guidé sur une voie arquée, une valve de dosage (3) et un moyen de commande qui est une électronique de régulation (1) et qui pilote la valve de dosage (3) en fonction d'une spécification et du débit mesuré, caractérisé en ce que le liquide est guidé vers la voie arquée par un canal d'amenée horizontal et est guidé de la voie arquée en direction de la valve de dosage par un canal de décharge coudé par rapport au canal d'amenée, la voie arquée s'étendant à la périphérie de la roue hélice sur un angle supérieur à 300° déterminé par les axes du canal d'amenée et du canal de décharge, et la voie arquée étant dirigée du bas vers le haut vers le canal de décharge (10), en ce que la valve de dosage (2) est agencée à l'extrémité du canal de décharge (10), en ce que le moyen de commande est regroupé avec le capteur de débit (2) et la valve de dosage (3) dans une unité structurelle.
  2. Dispositif selon la revendication 1, caractérisé en ce que le canal d'amenée se rétrécit vers la voie arquée.
  3. Dispositif selon la revendication 1, caractérisé en ce que la valve de dosage (3) présente un siège d'étanchéité réalisé à l'extrémité du canal de décharge (10) et un corps de fermeture dont la face frontale est perpendiculaire à l'axe du canal de décharge (10).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la valve de dosage (3) est une valve proportionnelle.
EP09711788.1A 2008-02-18 2009-02-04 Dispositif de dosage pour mélanges de fluides Not-in-force EP2242997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008002218U DE202008002218U1 (de) 2008-02-18 2008-02-18 Dosiervorrichtung für Fluidgemische
PCT/EP2009/000739 WO2009103418A1 (fr) 2008-02-18 2009-02-04 Dispositif de dosage pour mélanges de fluides

Publications (2)

Publication Number Publication Date
EP2242997A1 EP2242997A1 (fr) 2010-10-27
EP2242997B1 true EP2242997B1 (fr) 2018-12-12

Family

ID=40756645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09711788.1A Not-in-force EP2242997B1 (fr) 2008-02-18 2009-02-04 Dispositif de dosage pour mélanges de fluides

Country Status (4)

Country Link
US (1) US8707780B2 (fr)
EP (1) EP2242997B1 (fr)
DE (1) DE202008002218U1 (fr)
WO (1) WO2009103418A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992905A (en) * 1988-11-21 1991-02-12 Aerovox Incorporated High current pressure sensitive interrupters

Family Cites Families (21)

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US2078057A (en) 1935-11-11 1937-04-20 Chirca Axente Liquid meter
US2362778A (en) * 1940-08-01 1944-11-14 Smith Meter Company High-pressure meter
DE959590C (de) * 1953-07-01 1957-03-07 T A M Sa Pour Tous App S Mecan Durchlaufzaehler fuer Fluessigkeiten
US4173144A (en) 1978-04-03 1979-11-06 Transdynamics Low flow rate transducer construction
US4179924A (en) * 1978-04-03 1979-12-25 Chrysler Corporation Mounting for paddlewheel photoelectric transducer
GB2055348A (en) 1979-07-28 1981-03-04 Mcgregor J H Flow metering dispenser system
DE3146616A1 (de) * 1981-11-25 1983-07-07 Lang Apparatebau GmbH, 8227 Siegsdorf "mechanisch-hydraulische dosiereinrichtung und verfahren zum betrieb"
DE8408445U1 (de) 1984-03-20 1985-01-03 Plüss, Heinz, Schöndühl Messgeraet fuer getraenkeleitungen
DE3444578C1 (de) * 1984-12-06 1986-02-20 Grünbeck Wasseraufbereitung GmbH, 8884 Höchstädt Anschlussarmatur fuer Wasseraufbereitungsanlagen
WO1992001980A1 (fr) 1990-07-18 1992-02-06 Franz Kornfeind Dispositif compact de remplissage pour quantites reglables d'eau sanitaire
US5297425A (en) * 1992-03-23 1994-03-29 Tennessee Valley Authority Electromagnetic borehole flowmeter system
US5368273A (en) * 1992-10-21 1994-11-29 Allied Signal Inc. Venturi metering system
TW264536B (en) * 1995-01-13 1995-12-01 Ziba Design Inc Readily serviceable ancillary fluid filtration system having visual flow rate indicator and quick-release fluid hose fitting
DE19606794A1 (de) * 1996-02-23 1997-08-28 Mtu Muenchen Gmbh Einrichtung zur Positionierung einer Meßsonde
US6381549B1 (en) * 1999-01-28 2002-04-30 Dolphin Technology, Inc. System and method using digital filters and neural networks to determine fluid flow
US6843110B2 (en) * 2002-06-25 2005-01-18 Fluid Components International Llc Method and apparatus for validating the accuracy of a flowmeter
US7097113B2 (en) * 2004-01-20 2006-08-29 Norman Ivans Irrigation unit including a power generator
US7708206B2 (en) * 2004-12-22 2010-05-04 Norman Ivans Irrigation unit including a nozzle having greater accuracy and improved adjustment properties
US20050272891A1 (en) * 2004-02-13 2005-12-08 Atofina Research S.A. Double loop technology
DE102007006836A1 (de) * 2007-02-12 2008-08-14 Fafnir Gmbh Verfahren zum Bestimmen des Gasvolumenstroms bei der Gasrückführung an einer Tankstelle
US7426875B1 (en) * 2007-09-14 2008-09-23 Mcmillan Company Low flow rate measurement and control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US8707780B2 (en) 2014-04-29
DE202008002218U1 (de) 2009-07-09
WO2009103418A1 (fr) 2009-08-27
EP2242997A1 (fr) 2010-10-27
US20110083502A1 (en) 2011-04-14

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